power_supply: Add support for writeable properties

This patch adds support for writeable power supply properties and
exposes them as writeable to sysfs.

A power supply implementation must implement two new function calls in
order to use that feature:

  int set_property(struct power_supply *psy,
                   enum power_supply_property psp,
                   const union power_supply_propval *val);

  int property_is_writeable(struct power_supply *psy,
                            enum power_supply_property psp);

Signed-off-by: Daniel Mack <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Alexey Starikovskiy <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Matt Reimer <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>

0 files changed, 0 insertions, 0 deletions